本笔记本介绍如何开始使用 Upstage 聊天模型。

安装

安装 langchain-upstage package.

pip install -U langchain-upstage

环境设置

请确保设置以下环境变量：

• - UPSTAGE_API_KEY：您的 Upstage API 密钥，来自 Upstage 控制台.

用法

os.environ["UPSTAGE_API_KEY"] = "YOUR_API_KEY"

from langchain_core.prompts import ChatPromptTemplate
from langchain_upstage import ChatUpstage

chat = ChatUpstage()

# using chat invoke
chat.invoke("Hello, how are you?")

# using chat stream
stream = chat.stream_events("Hello, how are you?", version="v3")
for token in stream.text:
    print(token, end="", flush=True)

链接

# using chain
prompt = ChatPromptTemplate.from_messages(
    [
        ("system", "You are a helpful assistant that translates English to French."),
        ("human", "Translate this sentence from English to French. {english_text}."),
    ]
)
chain = prompt | chat

chain.invoke({"english_text": "Hello, how are you?"})